CRS12/9040 - large-format reference surround

  • RBN401 pro-ribbon HF driver, 12” Neodymium woofer
  • Signal Integrity Sensing™ pre-wired cable compensation
  • ‘Real-90’ dispersion, H 90° x V 40° (nom.)
  • 10° slanted baffle for optimised projection
  • Available in 8 ohms or 4 ohms version for multi-channel surround

Product description

The CRS12 is a 2-way passive-filtered full range loudspeaker, designed to meet all requirements of current and future (Digital) Cinema surround sound formats.
Featuring the patented Alcons pro-ribbon driver technology, the CRS12 combines an exceptional clarity and intelligibility with an unusually high dynamic range, offering the most realistic immersive surround sound reproduction possible.

The CRS12 system consists of one RBN401 pro-ribbon driver for HF and a vented 12” mid-bass for LF reproduction. The CRS12 HF section has an 800W peak power input, enabling a 1:16 dynamic range with up to 90% less distortion from 1kHz. to beyond 20kHz. The absence of a “compression threshold”, caters for a  linear tonal balance at any SPL, while the patented “Real-90” horizontal dispersion of the RBN401 guarantees a very stable sound field throughout the operating bandwidth.

By utilizing identical MHF components as featured in Alcons’ Digital Cinema screen systems, a perfect voicing matching between screen- and surround system is realized, resulting in an exceptionally wide and uniform sound stage throughout the entire listening area.

The 10-degree slanted baffle together with the upside-down speaker arrangement and the pro-ribbon’s response characteristic in the vertical plane, caters for a very smooth LF/HF blending, for both near and far located seats (on-axis as well as off-axis). The enclosure design and the optional RAL™ coloring provides for low profile wall mounting and a perfect interior blending.

For full system performance, the CRS12 needs to be driven by an ALC controller-amplifier, delivering maximum sound quality with increased headroom and utmost operation reliability. The CRS12 is available in 8 ohms and 4 ohms version, for maximum amplifier efficiency in individually-amplified immersive surround systems.

The Signal Integrity Sensing™ pre-wiring ensures complete cable/connector compensation between the CRS12 and ALC, significantly increasing response accuracy, regardless of cable length and system impedance, with tight and accurate mid and bass response as result.

The CRS12 is prepared for a Powerdrive 100 bracket, or equivalent.

Dimensional drawing

Technical specifications

Frequency response 70Hz - 20.000Hz     (+/- 3dB)
55Hz -            (+/-10dB)
Sensitivity nominal 100dB (200Hz - 10kHz)
Nominal impedance 8 or 4 ohms
Recommended drive     Sentinel3 min., max. 3 pcs (8 ohms)
1 pce (4 ohms) per channel (2.7 ohms / 4 ohms)
Nominal SPL peak 128dB (Sentinel3 8 ohms 200Hz - 10kHz)
133dB (Sentinel10 8 ohms 200Hz - 10kHz)

? dB (Sentinel3 4 ohms 200Hz - 10kHz)
? dB (Sentinel10 4 ohms 200Hz - 10kHz)

Dispersion H x V 90° x 40° (nom.)

Physical specifications

System 2-way, full-range
Filtering passive
Drivers LF 1x AW12.3ND 12”, vented
Drivers HF 1x RBN401 4” pro-ribbon driver
Connectors 2x Speakon NL4 input/link
Physical dimensions     
Height 649 mm / 25,6 inch
Width 370 mm / 14,6 inch
Depth 345 mm / 13,6 inch
Weight (approx.) 18kg (39.7lb)
Warranty 6 years limited

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